- x(t) is the input of your system
- y(t) is its output
Simulink transfer function with sinusoidal parameters
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Hi
I need to design a transfer function in the following form: 1 / (s^2 + K*s) where K is scalar and varies sinusoidal; the denominator should look like [1 K 0].
What would be the way to implement this behavior ?
Thanks
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Azzi Abdelmalek
le 12 Nov 2012
Modifié(e) : Azzi Abdelmalek
le 12 Nov 2012
The corresponding equation is
d^2y(t)/dt^2+k.dy(t)/dt+y(t)=x(t)
where
you have just to replace k by sin(t) using a clock and a sine wave block. and use derivative and integrator block instead of transfer function block to realize your model
or you can do this
from your transfer function
Y(p)(P^2+Kp+1)=X(p)
P^2 Y(p) + K p Y(p)+ 1=X(p)
Y(p)+K Y(p)/p+Y(p)/p^2=X(p)/p^2
this can be represented by
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River Rock
le 12 Nov 2012
2 commentaires
Azzi Abdelmalek
le 12 Nov 2012
This model is one of my own files. I 've adapted it for your question, I 've set the gain to 1. Then you can remove the two gain block
Azzi Abdelmalek
le 12 Nov 2012
Modifié(e) : Azzi Abdelmalek
le 12 Nov 2012
If you use D=[1 K], remove the first sum and 1/p blocks
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